Improvement in lamp-burners



imituessaea J. T. SHUSTER. Lamp-Burner.

Patented April 29, 1879.

N PEIERS, FHOTO-UTHOBRAPHER. WASHINGTON. D O.

UNITED STATES PATENT OFFICE.

JOHN T. SHUSTER, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN LAM P-BURNERS.

Specification forming part of Letters Patent No. 214.960, dated April29, 1879; application filed February 18, 1879.

To all whom it may concern:

Be it known that 1, JOHN T. SHUs'rER, of Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented certain new anduseful Improvements in Lamp- Burners; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it pertains tomake and use it, reference being had to the accompanying drawings, whichform part of this specification, in which- Figure 1 is a verticalcentral section, and Fig. 2 is a perspective view, of wick-tube.

My invention has relation to a lamp-burner intended for use inconnection with a non combustible wick; and my improvements consist inthe peculiar construction and combination of parts hereinafter fullydescribed, having reference principally to the provision of anadjustable wick-tube, which may be moved vertically for the regulationof the flame within a stationary tube, the latter being corrugated toafford gas-ventages for the oil-reservoir, and having openings for thesupply of air to support combustion.

Referring to the accompanying drawings, A designates the screw-neck of aburner, and a. to arms sustaining a perforated plate, B, on which restsa dome, 0, these parts being constructed in the usual or any suitablemanner.

D is a tube passing through the neckA and plate B, and made fastthereto, its upper extremity being slightly below the opening 0 in thedome O, as shown. Said tube has corrugated sides d d one of which isslotted at 01 the other side having openings or perforations at,opposite to said slot, the purposes of which will be hereinafter fullydetailed.

E represents the wick-tube fitted within the stationary tube D, andhaving a rack, 6, formed on one of its sides, for engagement with apinion, f, on a shaft, F. The pinion f passes through the slot d in thetube D, and when the shaft F is turned the tube E will be moved up ordown, as required, within said tube D, for the purpose of regulating theflame. G shows the wick, composed of two partsviz., a lower section, g,of felt or common wicking, and a non-combustible tip, 9 of asbestus orother equivalent material. These two parts are joined or held in endcontact in the tube E. Said tube thus forms a joint forthe two sectionsof the wick. It also subserves the further purpose of forming a rack forthe engagement of the pinion j, which is necessary where a rigid tip isemployed on a wick, in which case the wick cannot be moved by theengagement of the pinion direct with the cotton or flexible portion, asin common wicks.

A still further advantage is this. The wick being closely confinedwithin the tube E, the grooves 01* in the tube D are left open, and formventages for the gas generated in the oilreservoir or lamp-bowl, saidgas ascending therethrough and burning freely at the point ofcombustion, being supplied with ample oxygen through the openings 01 d Iam aware that there is no novelty in providing a lamp-burner with acorrugated wicktube through which the wick is directly fed, nor inproviding a burner with a sliding or adjustable tube. I therefore do notclaim either of these forms as my invention; but I base my claim on theassumption that the sliding wick-tube and the corrugated stationary tubehave not before been combined as required for the effective use of anon-combustible wick.

What I claim as my invention is- 1. The stationary corrugated tube D ina lamp-burner, in combination with an internal sliding wick-tube, E,substantially as shown and described.

2. In a lamp-burner, the combination, with a stationary tube, D, slottedat d, of an internal sliding wick-tube, E, having a rack, e, and apinion, f, on a shaft, F, substantially as shown and described. a

3. The combination, with an internal wicktube, E, of an externalcorrugated tube, D, having air-supply openings d (1 substantially asshown and described.

4. The combination, with a stationary corrugated tube, D, inalamp-burner, of an internal sliding tube, E, and a wick, G, in twosections, g g--viz., a lower part, of common wicking,andanon-combustible tip, as set forth.

In testimony that I claim the foregoing I have hereunto set my hand this14th day of February, 1879.

JOHN T. SHUSTER.

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